Open Source C Chat Software

See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.

ApexDC™ is an innovative Direct Connect client based on the DC++ and StrongDC++ projects. Direct Connect provides a rare blend of seamless file sharing and community based chat and messaging between users. ApexDC features plugins and scripting through Lua and much more. Both operators and users alike should find it a pleasant experience. Note: as of May 28th 2016 ApexDC is now primarily distributed as two separate installers one targetting 32bit and the other 64bit operating systems. Additionally XP compatible binaries are now only offered as a separate download from the files section.

Please make sure to read this page: http://sourceforge.net/p/sipe/wiki/Frequently%20Asked%20Questions/ A third-party Pidgin/Adium/Miranda/Telepathy plugin for the extended version of SIP/SIMPLE used by various products: * Skype for Business * Microsoft Office 365 * Microsoft Business Productivity Online Suite (BPOS) * Microsoft Lync Server * Microsoft Office Communications Server (OCS 2007/2007 R2) * Microsoft Live Communications Server (LCS 2003/2005)

[IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.

emesene is a platform independent instant messaging client for the Windows Live Messenger (tm) network. emesene is distributed free of charge under the GNU General Public License 2 or any later version.

Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam. It allows you to ignore IMs unless the sender is in your Buddy List, the sender is in your Allow List, or the sender correctly answers a question you have predefined.

[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.

Ayttm is an instant messenger program, supporting various protocols such as MSN, Yahoo, AIM, Jabber, and more. It is the heir of the Everybuddy project, and aims to continue improving the program and addressing its shortcomings.

Licq is an ICQ/AIM clone written fully in C++. It uses an extensive plugin system to manage many different functions including the MSN protocol. The main GUI is written using the Qt widget set.

Anope Services are built off of the original Epona code written by Lara which is built off of IRC Services. These services have advanced the original Epona code and include new features such as Modules, Mysql, and Defcon Mode.

Yammy (Yahoo Messenger Archive Decoder) allows you to decode and view not only yours but, also other stored YM conversations. You don't even need a password!

Gamers.IRC is a full MSL Script for mIRC, the most popular Windows IRC client. Gamers.IRC is for Windows 95 and higher. Source code: Download and run the installer. Open the .grc and .ini files with notepad.

psyBNC is an easy-to-use, multi-user, permanent IRC-Bouncer with many features. Some of its features include symmetric ciphering of talk and connections (Blowfish and IDEA) It compiles on Linux, FreeBSD, SunOs and Solaris.

Simple and powerful chat client/server system for your web pages. Support channel administration, irc-like commands, connections filtering, extensive logging and much more. Works in any Java compliant web browser.

Jabberwocky is a jabber client software for Amiga Computers. It is open source and released under the GNU GPL License.

srvx IRC Services is a ground-up implementation of services for IRC networks (supporting IRCu2.10, Bahamut, and other IRC server dialects). Features include POSIX threading, generalized proxy detection and all the standard services users expect.

Idiot is a superset of different projects. Most of them deal with IRC.

climm is a portable, small, yet powerful console based, fully internationalized instant messaging client supporting the current v8 ICQ protocol and XMPP.

DAVIS is an easy and useful language for IRC bots. This project contains our own bots, some bots for demonstration, a parser that creates Java, C, Perl and IRC-Script code out of a DAVIS file, and an interpreter for DAVIS files.

Eggdrop is the most advanced IRC robot available. It has been under development since December 1993, and unlike most other bots, it is still regularly updated.

Ethernet chat compatible with popular Lanchat Pro ( UDP chat to talk in local network). Uses gtk+ and gettext.

Airwave: IRC-Services that are fast, stable, written in standard C, based on Cygnus and include HostServ.

This is an P2P Chatclient for everyone and open source. It was created for people to see an example for a chat-programm and learn how to networkprogramming works by looking at our code. We hope you enjoy it.

Pidgin Birthday Reminder reminds you of your buddies birthdays. Birthdays can be set by hand or be automatically filled-in for ICQ, MSN and XMPP protocols. We moved to GitHub: https://github.com/kgraefe/pidgin-birthday-reminder

BIV is an simple instant messenger for linux systems. It contains a server and a client using a special protocol.